We were all surprised when he made it clear that he ________ office soon．

A．leaves

B．left

C．would leave

D．had left

Many new________ will be opened up in the future for those with a university degree．

A．realities

B．necessities

C．probabilities

D．opportunities

Most birds find it safe to sleep in the trees, but ________ they have eggs or young chicks, they don’t use a nest．

A．why

B．ow

C．where

D．unless

－It’s getting dark, but Mr．Johnson is still at his office．

－No surprise．Who else can ________ he does?

A．do less work than

B．work as hardly as

C．work as hard as

D．be working hardly like

Since David ________ downloaded a virus into his computer, he can not open the file now．

A．readily

B．accidentally

C．horribly

D．irregularly

－How often do you eat out?

－________, but usually once a week．

A．Have no idea

B．As usual

C．It depends

D．Generally speaking

－Have the police found the parents of the baby found by the road?

－Not yet．His identity ________．

A．would be found out

B．has been found out

C．is being found out

D．had been found out

－Mr．Smith, ________ he have all these letters typed for you right away?

－He ________．They should be ready by 10 o’clock this morning．

A．will; must

B．shall; has to

C．need; will

D．would; ought to

I won’t give you such help ________ you tell me the truth．It’s beyond my ability．

A．when

B．since

C．if

D．even if

－Mary has been trained hard for the last two years．

－________ she did so well at the track and field meet yesterday．

A．No doubt

B．No question

C．No wonder

D．No problem